JPH0234139A - Endoscope device - Google Patents
Endoscope deviceInfo
- Publication number
- JPH0234139A JPH0234139A JP63184612A JP18461288A JPH0234139A JP H0234139 A JPH0234139 A JP H0234139A JP 63184612 A JP63184612 A JP 63184612A JP 18461288 A JP18461288 A JP 18461288A JP H0234139 A JPH0234139 A JP H0234139A
- Authority
- JP
- Japan
- Prior art keywords
- suction
- route
- leak
- endoscope
- negative pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005484 gravity Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000001079 digestive effect Effects 0.000 description 2
- 238000001839 endoscopy Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
Landscapes
- Endoscopes (AREA)
Abstract
Description
【発明の詳細な説明】
[発明の目的1
(産業上の利用分野)
本発明は、被検体の体腔内を観察するために用いる内祝
tli装置に関し、特に吸引チャネルの改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Objective of the Invention 1 (Industrial Application Field) The present invention relates to a tli device used for observing the inside of a body cavity of a subject, and particularly relates to an improvement of the suction channel.
(従来の技術)
従来、吸引チVネルを備えた内?lt装置として、内視
鏡スコープから吸引器へと継がる吸引経路の適宜個所に
電磁弁を設(゛)たものが提案され、実用に供されてい
る。(Conventional technology) Conventionally, a vacuum cleaner equipped with a suction channel V-channel? As an LT device, one in which electromagnetic valves are provided at appropriate locations in a suction path connecting an endoscope to a suction device has been proposed and put into practical use.
この従来の内視m装置では、電気スイッチを操作するこ
とにより上記電磁弁を開閉することかできるから、その
間rl aI制御を行なうことにより−1,記吸引器に
よる吸引機を調整する吸引制御を行なえる。In this conventional endoscopic m device, the above-mentioned solenoid valve can be opened and closed by operating an electric switch, so by performing rl aI control during that time, -1. I can do it.
(発明が解決しようとする課題)
しかしながら、従来のこの種の内視鏡装置の場合におい
ては、吸引器による負圧が直接的に内視鏡スコープにか
かるため、吸引器による負圧が極めて大きい場合、内視
鏡スコープのスコープ先端部の吸引圧が同様に極めて大
きくなる。(Problem to be solved by the invention) However, in the case of conventional endoscopic devices of this type, the negative pressure from the suction device is applied directly to the endoscope, so the negative pressure from the suction device is extremely large. In this case, the suction pressure at the distal end of the endoscope becomes extremely large.
そのため、吸引器の負圧が極めて大きい場合には、体腔
内の被検査部位の消化壁が傷つく程吸引される事態が生
じる虞れがあった。Therefore, if the negative pressure of the suction device is extremely large, there is a risk that suction may be applied to the extent that the digestive wall of the examined site within the body cavity may be damaged.
本発明は、係る課題に鑑みてなされたもので、その目的
とするところは、吸引器による負圧が掻めて大きい場合
、この負圧が直接的に内視鏡スコープへかかる事態を回
避することができる内視鏡装置を捉供することにある。The present invention has been made in view of the above problems, and its purpose is to avoid a situation where this negative pressure is directly applied to the endoscope when the negative pressure caused by the suction device is large. The objective is to provide an endoscopic device that can perform the following tasks.
し発明の構成]
(課題を解決するための手段)
本発明は、上記目的を達成づるため、内視鏡スコープか
ら吸引器へと継がる吸引経路の適宜個所に吸引制御弁を
設けた内視鏡装置において、前記吸引経路における前記
吸引器と前記吸引fI11111弁との経間にリーク管
路を分岐して設け、このリーク管路に管路流通抵抗を適
宜調整し得るΩ圧調整機構を具備したことを要旨として
いる。[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides an endoscopy system in which suction control valves are provided at appropriate locations in the suction path leading from the endoscope to the suction device. In the mirror device, a leak pipe is branched and provided between the suction device and the suction fI11111 valve in the suction path, and the leak pipe is equipped with an Ω pressure adjustment mechanism that can appropriately adjust the pipe flow resistance. The summary is what was done.
(作用)
本発明による内112ta装置であれば、吸引器と吸引
制御弁の軽量にリーク管路があり、このり−り管路に管
路流通抵抗を適宜調整し得るΩ圧調整機構が備わるから
、吸引υ1111弁の開放時に負圧調整mM4によって
内視鏡スコープ側にがかる負圧を所望通りに調整するこ
とができる。(Function) The 112 ta device according to the present invention has a leak pipe between the suction device and the suction control valve, and this pipe is equipped with an Ω pressure adjustment mechanism that can appropriately adjust the flow resistance of the pipe. Therefore, when the suction υ1111 valve is opened, the negative pressure applied to the endoscope side can be adjusted as desired by the negative pressure adjustment mm4.
(実施例)
第1図は、本発明が適用された一実施例の内視鏡装置の
要部概略を示す構成図である。(Embodiment) FIG. 1 is a block diagram schematically showing the main parts of an endoscope apparatus according to an embodiment of the present invention.
この一実施例の内視鏡装置は、内視鏡スコープ1から吸
引器2へと継がる吸引経路3における吸引器2と電磁弁
4との軽量に、リーク管路5を分岐して設けている。The endoscope device of this embodiment has a leak pipe 5 branched between the aspirator 2 and the electromagnetic valve 4 in the suction path 3 that connects the endoscope scope 1 to the aspirator 2. There is.
そして、リーク管路5には、管路流通抵抗を適宜調整し
得る負圧調整機構6を備えている。この負圧調整機構6
は、リーク管路5として弾性変形し得るものを適用した
場合、例えば第2図に示す如<a番構造の挟持具7の中
にリーク管路5を介在させて、蝶ネジ8を締付けること
で、リーク管路5の流路断面積を変化させる構造の負荷
調整機構とすることができる。The leak conduit 5 is equipped with a negative pressure adjustment mechanism 6 that can appropriately adjust the conduit flow resistance. This negative pressure adjustment mechanism 6
When a leak pipe 5 that can be elastically deformed is used, for example, as shown in FIG. Thus, the load adjustment mechanism can be configured to change the cross-sectional area of the leak pipe 5.
前述した各部構成を電気回路に置換えて模式的ニ示L/
tc モのが第3図である。同図において、V+ は
吸引器2の貴圧力、v3は内視鏡スコープ1のスコープ
先端部が位置する部位の圧力・slは電磁弁4、R1は
リーク管路5の分岐位置から吸引2S2までの軽量の管
路流通抵抗・R3は内視鏡スコープ1のスコープ先端部
から電磁弁4まで軽量の管路流通抵抗、R2は負圧調整
機f36の開放度合によるリーク管路5の管路流通抵抗
(負圧調整機構6の前接の管路流通抵抗を含む)、i3
は吸引時に内pAmス−1−11を流れる流体の流憬。A schematic diagram L/
Figure 3 shows the tc model. In the same figure, V+ is the noble pressure of the suction device 2, v3 is the pressure at the part where the scope tip of the endoscope 1 is located, sl is the solenoid valve 4, and R1 is from the branch position of the leak pipe 5 to the suction 2S2. R3 is the lightweight pipe flow resistance from the scope tip of the endoscope 1 to the solenoid valve 4, and R2 is the pipe flow resistance of the leak pipe 5 depending on the degree of opening of the negative pressure regulator f36. Resistance (including pipe flow resistance in front of the negative pressure adjustment mechanism 6), i3
is the flow of fluid flowing through the internal pAm-1-11 during suction.
12はリーク管路5に流れる空気の流量、11は12と
i3との和である。ここで、電磁弁4からリーク管路5
の分岐位置までの管路流通抵抗は省略してなる。12 is the flow rate of air flowing into the leak pipe 5, and 11 is the sum of 12 and i3. Here, from the solenoid valve 4 to the leak pipe 5
The pipe flow resistance up to the branch position is omitted.
今、第3図に示す関係から、St −ON時は、i 3
= (V3−V2 ) / R3”(I)i 2−−
V2 /R2=<2)
i + = (V2 +V+ )/RI=ml 2 +
i 3 ・・・(3)となる。Now, from the relationship shown in Fig. 3, when St - ON, i 3
= (V3-V2) / R3"(I)i 2--
V2 /R2=<2) i + = (V2 +V+ )/RI=ml 2 +
i 3 ...(3).
この式(1)〜(3)の関係を解くと、(V+ −ト
(R+ + 1 ) V3 ) /
(R1+R3+R3R1/R2)
・・・〈4)となる。従って、式(4)によりR2に
関し、単調増加関数であることがわかる。Solving the relationships in equations (1) to (3), we get (V+ - (R+ + 1) V3) /
(R1+R3+R3R1/R2)
...〈4). Therefore, it can be seen from equation (4) that R2 is a monotonically increasing function.
このことにより、検査者は、内視鏡装置で用いている吸
引器2の負圧に対し、負圧調整機構6の開放度合を調整
することにより、常に一定の吸引力を所望通りに得るこ
とができる。This allows the examiner to always obtain a desired constant suction force by adjusting the degree of opening of the negative pressure adjustment mechanism 6 for the negative pressure of the suction device 2 used in the endoscope device. Can be done.
従って、本発明の一実施例によれば、被検体の体腔内に
内視鏡スコープ1の導中部を挿入して吸引操作を行なっ
ている際、体腔内の被検査部位の消化壁を傷つける事態
を未然に防止することができる。Therefore, according to one embodiment of the present invention, when the guide part of the endoscope 1 is inserted into the body cavity of a subject and a suction operation is performed, the digestive wall of the inspected area in the body cavity may be damaged. can be prevented.
また、電磁弁4の吸引器2側の吸引経路3を構成するチ
ューブに対し、過大な負圧がかかる事態も解消させるこ
とから、そのチューブがつぶれたり、またそのチューブ
に亀裂が生じたりする事態も防ぐことができ、よってそ
のチューブを長もちさせることができる。It also eliminates the situation where excessive negative pressure is applied to the tube that constitutes the suction path 3 on the side of the suction device 2 of the solenoid valve 4, thereby preventing the tube from collapsing or cracking. Therefore, the tube can be used for a long time.
なお、吸引経路3を構成するチューブにっぷれが生じる
と、電磁弁4の開放時にそのチューブに元の形状にもど
る力が付与されて、瞬間時に強い吸引力が発生し、被検
査部位の消化管壁を誤って吸引してしまうことがある。Note that if a bulge occurs in the tube constituting the suction path 3, a force is applied to the tube to return to its original shape when the solenoid valve 4 is opened, and a strong suction force is generated instantaneously, causing digestion of the area to be examined. You may accidentally aspirate the tube wall.
しかし、上記のようにチューブのつぶれが防止されるか
ら、この防止により被検査部位の消化管壁を誤って吸弓
ロノでしまう事態を未然に防ぐことができるものである
。However, since the tube is prevented from collapsing as described above, it is possible to prevent the wall of the gastrointestinal tract at the site to be examined from being erroneously touched by the suction tube.
また、リーク管路5を吸引経路3から分岐して設ける場
合、リーク管路5を重力に対し逆向き方向にしておくこ
とにより、吸引経路3を流れる汚物が外部へ飛散する・
事態を防止することができる。In addition, when the leak pipe 5 is provided branching from the suction route 3, by arranging the leak pipe 5 in a direction opposite to gravity, the dirt flowing through the suction route 3 can be scattered to the outside.
The situation can be prevented.
従って、リーク管路5に装備された負圧調整機構6等の
汚損防止に極めて効果的となる。Therefore, it is extremely effective in preventing contamination of the negative pressure adjustment mechanism 6 and the like installed in the leak pipe 5.
(発明の効宋j
以上説明したように、本発明が適用された内視鏡装置は
、吸引経路における流量制御弁と吸引器と軽量にリーク
管路を分岐して設けるとともに、そのリーク管路の途中
に負圧調整機構を設けることにより、吸引経路に対しか
かる負圧を所望通りに調整づるものとしたから、吸引器
の吸引能力の大小にかかわらず、安全下で内視鏡検査笠
を行なえる。(Effects of the Invention) As described above, the endoscope apparatus to which the present invention is applied has a flow control valve and an aspirator in the suction path, and a lightweight leak line branched from the leak line. By providing a negative pressure adjustment mechanism in the middle of the suction path, the negative pressure applied to the suction path can be adjusted as desired, so regardless of the suction capacity of the suction device, endoscopy can be performed safely. I can do it.
第1図は本発明が適用された一実施例の内視鏡装置の要
部概略を示す構成図、第2図はその一実施例で用いる0
圧調整機構の一例を示す詳細説明図、第3図はその一実
施例の各部構成を電気回路に臀換えて模式的に示す制御
状況説明図である。FIG. 1 is a block diagram showing the outline of the main parts of an endoscope apparatus according to an embodiment of the present invention, and FIG.
FIG. 3 is a detailed explanatory diagram showing an example of the pressure adjustment mechanism, and FIG. 3 is a control situation explanatory diagram schematically showing the configuration of each part of the embodiment as an electric circuit.
Claims (3)
適宜個所に吸引制御弁を設けた内視鏡装置において、前
記吸引経路における前記吸引器と前記吸引制御弁との経
間にリーク管路を分岐して設け、このリーク管路に管路
流通抵抗を適宜調整し得る負圧調整機構を具備したこと
を特徴とする内視鏡装置。(1) In an endoscope apparatus in which a suction control valve is provided at an appropriate location on a suction path that connects an endoscope to a suction device, leakage occurs between the suction device and the suction control valve in the suction path. An endoscope apparatus characterized in that a conduit is branched and the leak conduit is provided with a negative pressure adjustment mechanism capable of appropriately adjusting the conduit flow resistance.
引経路から重力に対し逆向き方向の分岐構造であること
を特徴とする請求項1記載の内視鏡装置。(2) The endoscope apparatus according to claim 1, wherein at least a portion of the leak conduit has a branch structure in a direction opposite to gravity from the suction path.
弾性変形させる蝶番構造であることを特徴とする請求項
1記載の内視鏡装置。(3) The endoscope apparatus according to claim 1, wherein the negative pressure adjustment mechanism has a hinge structure that clamps and elastically deforms the leak pipe.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63184612A JPH0234139A (en) | 1988-07-26 | 1988-07-26 | Endoscope device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63184612A JPH0234139A (en) | 1988-07-26 | 1988-07-26 | Endoscope device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0234139A true JPH0234139A (en) | 1990-02-05 |
Family
ID=16156269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63184612A Pending JPH0234139A (en) | 1988-07-26 | 1988-07-26 | Endoscope device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0234139A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11164810A (en) * | 1997-12-05 | 1999-06-22 | Fuji Photo Optical Co Ltd | Flow rate control device for endoscope pipe passage |
-
1988
- 1988-07-26 JP JP63184612A patent/JPH0234139A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11164810A (en) * | 1997-12-05 | 1999-06-22 | Fuji Photo Optical Co Ltd | Flow rate control device for endoscope pipe passage |
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